Author: Robert Hyatt
Date: 05:24:08 11/02/98
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On November 02, 1998 at 02:49:14, Koen van Dijken wrote: >mr Hyatt, > >I was comparing the speed in nps of my own program against that of Crafty. I >have the sources for 14.2 and 15.20. I noticed that in Search there is a >difference in node counting between 14.2 and 15.20. In 14.2 you do not count >illegal moves, in 15.20 you do. Is there a reson for this? > >15.20 > } else tree->nodes_searched++; > UnMakeMove(tree,ply,tree->current_move[ply],wtm); > >Is this maybe the way nodecounting is done in other programs as well, for better >comparising? > >Koen van Dijken. That was the main idea. However it turned out to have no effect... because now I increment nodes_searched at the top of search, and I *never* get there unless the position is "legal"... so for search() it doesn't matter. In quiesce, I do count illegal positions... but the point is counting "work" really... and if I do a MakeMove() and so forth, I "searched" that node whether it was legal or not.
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